0
How much heat energy in megajoules is needed to convert 7 kilograms of ice at -9c to water at 0c?
To convert 7 kilograms of ice at -9°C to water at 0°C, you need to calculate the energy required for each phase change. First, calculate the energy to raise the ice temperature from -9°C to 0°C using the specific heat capacity of ice. Then, calculate the energy required to melt the ice into water using the latent heat of fusion of ice. The total energy will be the sum of these two values.
What else can I help you with?
How much energy is needed to increase the temperature of 100kg of iron by 40 degrees?
The specific heat capacity of iron is about 0.45 J/g°C. To calculate the energy required to increase the temperature of 100kg of iron by 40 degrees, we first convert kg to grams: 100 kg = 100,000 g. Then we use the formula: Energy = mass x specific heat capacity x temperature change. Therefore, Energy = 100,000g x 0.45 J/g°C x 40°C = 1,800,000 Joules or 1.8 Megajoules.
What energy source causes evaporation?
Solar energy is the main energy source that causes evaporation. The heat from the sun provides the energy needed to convert water from liquid to gas, leading to evaporation.
Does A battery converts mechanical energy to chemical energy?
no, its chemical energy to electrical energy.
Please tell me how to convert 4ookg into cubic met?
To convert mass (kg) to volume (cubic meters), you need to know the density of the substance. Without the density, you cannot accurately convert 400 kg to cubic meters. Density is needed to convert mass to volume.
If 3 ml per kg what would 800 pounds be?
To determine the total volume of fluid needed for an 800-pound person at a rate of 3 ml per kg, you first convert pounds to kilograms. Since 1 kg is approximately 2.2 pounds, you would divide 800 by 2.2 to get the weight in kilograms. Then, multiply the weight in kilograms by 3 ml to find the total volume needed.
How do you convert Mass into thermal energy?
You generally need a catalyst or a mechanism to convert the energy. For example to convert fuel (a mass) into thermal energy, oxidizer and a spark are needed.
What kind of energy is needed by plants to convert the raw materials?
sun and water
What is the kind of energy is needed by plants to convert the raw materials into food?
solar
How much wood is needed to bring 1 liter of water to the boil?
To bring 1 liter of water to a boil, you would need approximately 0.24 kilograms of wood. This is based on the energy content of wood, which is around 16-20 megajoules per kilogram. The specific amount of wood required can vary depending on factors such as the type of wood, its moisture content, and the efficiency of the burning process.
What volume of water can be boiled by 3.0 kg of energy?
To determine the volume of water that can be boiled using 3.0 kg of energy, we first convert the energy from kilograms to joules. Assuming the energy is in kilograms of mass equivalent (using E=mc²), 3.0 kg of energy is equivalent to about 2.7 x 10^16 joules. The energy required to boil water is approximately 2,260 joules per gram (the latent heat of vaporization). Thus, dividing the total energy by the energy needed to boil water gives you about 11,900,000 grams, or approximately 11,900 liters of water.
What is a device that can convert electrical energy to chemical engery?
A battery is a device that can convert electrical energy into chemical energy for storage. In a battery, chemical reactions occur that release energy in the form of electricity when needed.
What chemical is essential for photosynthesis in plants?
Chlorophyl is needed for plants to convert sunlight to energy.
What is the energy does our bodies gain from eating food?
Chemical energy, which we later convert to the various forms of energy needed to perform the functions of our daily lives.
How do the native starches develop in the plant?
They convert the extra glucose into starch, which can be converted into energy later when needed.
High energy electrons that move down the electron transport chain ultimately provide the energy needed to?
of course it is break glucose into pyruvic acid.
How much energy is needed to increase the temperature of 100kg of iron by 40 degrees?
The specific heat capacity of iron is about 0.45 J/g°C. To calculate the energy required to increase the temperature of 100kg of iron by 40 degrees, we first convert kg to grams: 100 kg = 100,000 g. Then we use the formula: Energy = mass x specific heat capacity x temperature change. Therefore, Energy = 100,000g x 0.45 J/g°C x 40°C = 1,800,000 Joules or 1.8 Megajoules.
What do cells need if they do not have immediate energy needs they convert glucose to?
If cells do not have immediate energy needs, they can convert glucose to glycogen for storage in the liver and muscles until it is needed. This stored glycogen can be broken down into glucose when the cells require energy.
